The above table details the 3-Phase Triggering Board configuration with the specifications. Following are the features / controls that needs to be incorporated in the 3-Phase Triggering Board

· Thyristor (SCR) or Triac based - depending on customer requirement

· Phase angle control implementation

· External Inter-lock mechanism

· External Synchronization (if required)

· Over-load protection

· Over-temperature protection

· Current limit settings

· Acceleration time : 0 ??" 60 sec

· De-acceleration time : 0 ??" 60 sec

· Indication using LED’s

· In-build SMPS power supply for control logic

· Phase loss detection

Following are the settings implemented digitally

· Overload setting

· Current limit setting

· Acceleration time settings

· De-acceleration time setting

· Over-temperature settings

Motor characteristics

The settings could be initially programmed and then shipped to the client site. Another option is to have separate programming software. Using this tool, we can program the soft-starter at the client site based on the motor parameters. This will also speed up the programming activity for the soft-starter.

Following are the controls implemented digitally

· Over-current protection / limits

· Acceleration ramp control

· De-acceleration ramp control

· Motor overload protection

· Over Temperature protection ( if temperature sensor is in-built in the motor)